From 336321b113d58ad2ed4332092ec1313b6a48717e Mon Sep 17 00:00:00 2001
From: Fredrik Holmqvist <fredrik.holmqvist@gmail.com>
Date: Tue, 31 Aug 2021 20:22:15 +0200
Subject: [PATCH] AARCH64: Implement enough of relocations to get kernel loaded

---
 src/system/kernel/arch/arm64/arch_elf.cpp | 31 +++++++++++++++++++++++
 1 file changed, 31 insertions(+)

diff --git a/src/system/kernel/arch/arm64/arch_elf.cpp b/src/system/kernel/arch/arm64/arch_elf.cpp
index bbb957b5aa..a2ca4c47e9 100644
--- a/src/system/kernel/arch/arm64/arch_elf.cpp
+++ b/src/system/kernel/arch/arm64/arch_elf.cpp
@@ -86,11 +86,42 @@ arch_elf_relocate_rela(struct elf_image_info *image,
 		// Calculate the relocation value.
 		Elf64_Addr relocValue;
 		switch (type) {
+			case R_AARCH64_NONE:
+				continue;
+			case R_AARCH64_ABS64:
+				relocValue = symAddr + rel[i].r_addend;
+				break;
+			case R_AARCH64_ABS32:
+			case R_AARCH64_ABS16:
+			case R_AARCH64_PREL64:
+			case R_AARCH64_PREL32:
+			case R_AARCH64_PREL16:
+			case R_AARCH64_TSTBR14:
+			case R_AARCH64_CONDBR19:
+			case R_AARCH64_JUMP26:
+			case R_AARCH64_CALL26:
+			case R_AARCH64_COPY:
+				dprintf("arch_elf_relocate_rela: unhandled relocation type %d\n",
+					type);
+				return B_BAD_DATA;
+			case R_AARCH64_GLOB_DAT:
+			case R_AARCH64_JUMP_SLOT:
+				relocValue = symAddr + rel[i].r_addend;
+				break;
+			case R_AARCH64_RELATIVE:
+				relocValue = image->text_region.delta + rel[i].r_addend;
+				break;
+			case R_AARCH64_TLS_DTPREL64:
+			case R_AARCH64_TLS_DTPMOD64:
+			case R_AARCH64_TLS_TPREL64:
+			case R_AARCH64_TLSDESC:
+			case R_AARCH64_IRELATIVE:
 			default:
 				dprintf("arch_elf_relocate_rela: unhandled relocation type %d\n",
 					type);
 				return B_BAD_DATA;
 		}
+
 #ifdef _BOOT_MODE
 		boot_elf64_set_relocation(relocAddr, relocValue);
 #else